17 Best Squarespace Plugins For eCommerce
Boost sales. Improve UX. Keep customers coming back.
Squarespace makes it easy to launch a clean online store — but when it comes to serious eCommerce features, you’re gonna need a few upgrades.
This list covers the best plugins for turning a basic Squarespace site into a selling machine.
No code. No dev hours. Just plug and play.
1. Sync product images with variants
Make product selection idiot-proof.
If your variant images don’t sync when a customer clicks a color or size, they’ll bounce. This plugin fixes that.
✅ Match images to variant selection
✅ Eliminate confusion and friction
✅ Boost conversion rates
Shopify-style swatches. On Squarespace.
Let customers see what they’re choosing — colors, textures, patterns. Works great with the variant image sync.
Drive urgency with real-time inventory indicators.
“Only 3 left in stock” triggers way more checkouts than silence.
Nobody wants to leave the page to check sizing. This plugin pops your size chart (or any extra info) in a slick lightbox.
Upsell without lifting a finger.
Automatically show similar or related items using product tags.
Social proof sells. This plugin integrates Wiremo review widgets across your product pages.
✅ Free to use
✅ Fully styled for Squarespace
✅ SEO-boosting content
7. FOMO Sales Notifications
Add “X just purchased” popups to create real-time buyer energy. Works great for digital or physical products.
8. Squarespace Custom Cart Drawer
Upgrade the native Squarespace cart with a slide-out drawer. Cleaner, faster, more Shopify-like.
9. Custom Order Confirmation
Make the thank-you page do more than just say “thanks.”
Add upsells, next steps, or brand messaging to your post-checkout experience.
10. Lightbox Upsell Add-on
Trigger a product offer when someone adds to cart or hits checkout.
11. Referral Candy
Turn happy customers into a marketing channel. Squarespace-friendly referral system.
12. Mega Menu Plugin
Got lots of categories or collections? Make them easy to navigate with a flyout mega menu.
13. SEOSpace SEO Plugin
Yes, there’s finally a real SEO plugin for Squarespace.
14. Universal Filter Plugin
Let users filter by price, size, color, tag — all without needing a developer.
15. All-in-one Chat from Elfsight
Elfsight’s widget supports WhatsApp, Messenger, and more — so you never miss a lead.
16. Countdown Timer
Run limited-time offers, flash sales, or product launches with a simple embeddable timer.
17. Litcommerce for multichannel selling
List your Squarespace products on Amazon, Etsy, Walmart, and more.
